Middle East crisis live: Iran says ‘fundamental’ issues’ still to be resolved with US amid strait of Hormuz impasse

Welcome to our live coverage of events in the Middle East.

Iran’s top negotiator, Mohammad Bagher Ghalibaf, said on Saturday that the recent talks with the US had made progress but gaps remained over nuclear issues and the strait of Hormuz. “We have had progress but there is still a big distance between us,” he told state media, referring to talks last weekend. “We made progress in the negotiations, but there are many gaps and some fundamental points remain.”

President Donald Trump said the US was having “very good conversations” with Tehran but warned against “blackmail” over the key shipping channel. He later praised war ally Israel in a social media post, adding that other allies had “shown their true colours in a moment of conflict and stress”.

It comes after Iranian officials reversed the reopening of the strait of Hormuz and reimposed restrictions on the vital shipping lane after the US said it would not end its blockade of Iranian ports.

A UK maritime agency reported that Islamic Revolutionary Guard Corps (IRGC) ships had fired at a tanker as it attempted to pass through the strait on Saturday. Reuters reported an Indian-flagged vessel carrying crude oil had also been attacked while in the waterway.

Iran’s Khatam al-Anbiya joint military command said on Saturday that Tehran had restored the strait to its “previous status” and was now “under strict management and control by the armed forces”.

Trump convened a White House Situation Room meeting on Saturday morning to discuss the renewed crisis according to reporting from Axios. A senior US official said that unless there is a breakthrough in peace talks, it appears that the war could reopen within days.

US president Donald Trump arrives at Trump National Golf Club in Sterling, Virginia, on Saturday. Photograph: Julia Demaree Nikhinson/AP

In other developments:

• After the initial talks between the US and Iran last weekend in Pakistan, the Iranian deputy foreign minister, Saeed Khatibzadeh, said a second date cannot be set until both sides “have agreed on the framework”.
• Iran’s supreme national security council, the country’s highest decision-making body under the supreme leader, said , according to Iranian media.